A042913 Denominators of continued fraction convergents to sqrt(988).

1, 2, 7, 30, 37, 770, 4657, 5427, 80635, 86062, 597007, 12026202, 12623209, 62519038, 200180323, 462879684, 28898720731, 58260321146, 203679684169, 872979057822, 1076658741991, 22406153897642, 135513582127843, 157919736025485, 2346389886484633, 2504309622510118

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 29098901054, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

Formula

a(n) = 29098901054*a(n-16) - a(n-32) for n>31. - Vincenzo Librandi, Feb 01 2014

Mathematica

Denominator[Convergents[Sqrt[988], 30]] (* Vincenzo Librandi, Feb 01 2014 *)

Crossrefs

Cf. A042912, A040956.

Sequence in context: A125174 A270526 A037417 * A041805 A173233 A074416

Adjacent sequences: A042910 A042911 A042912 * A042914 A042915 A042916

Keyword

nonn,frac,easy

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Feb 01 2014

Status

approved